Tender seeks civil works to lay cable routes for a new shore power system at a major terminal, cutting ship emissions while alongside.
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A new contract notice for cable routes for a shore power system at the UNIKAI Terminal from Hamburg Port Authority AöR will enable RoRo and ConRo ships to turn off their diesel generators while alongside. By focusing on the underlying cable infrastructure, the project shows how ports are translating climate ambitions into specific groundworks, grids and connection points.
Published on 10th August 2026, the Hamburg notice covers the construction of cable routes and shafts to establish a shore power supply system at the UNIKAI Terminal. The works will provide the physical pathways needed to deliver electricity safely and reliably from the landside network to berths used by RoRo and ConRo vessels.
Once the system is in place, ships using these berths will be able to switch off their diesel generators during port stays and draw power from the quayside instead. The notice frames this directly as an emissions reduction measure, using electrical supply at berth to curb engine use and the associated exhaust.
Although concise, the description implies a package of civil and cable construction activities: creating protected routes, installing shafts and preparing the terminal’s fabric for later electrical equipment. It positions Hamburg’s port authority as the coordinator of a broader sequence of procurements that will ultimately deliver shore power as a service to shipping lines.
The Hamburg project sits alongside a wave of recent port procurements that combine planning, design and installation of shore power systems. In February 2026, Hansestadt Lübeck issued a contract notice for shore power systems infrastructure at Skandinavienkai. That project covers planning, procurement and installation of cable management systems for RoRo and RoPax ships, as well as design planning, commissioning and foundation construction. Where Hamburg focuses on cable routes, Lübeck’s scope runs from design through to commissioning of equipment.
Some ports are going further upstream, using market engagement to shape their projects before formal tenders. In March 2026, Groningen Seaports NV launched a market consultation on a shore power facility for shipping at Beatrixhaven Eemshaven. The consultation is intended to test project definitions, design and execution capabilities, and the feasibility of delivery schedules, signalling an interest in aligning technical ambition with what the supply chain can credibly deliver.
Planning and execution are also being tied together for container traffic. In March 2026, the port authority in Gijón published a prior information notice for an electrical supply project for container ships, covering both project drafting and execution, including installation, civil works and commissioning support. This kind of combined service contract contrasts with Hamburg’s more focused infrastructure package.
Smaller but still strategic schemes show similar thinking. In June 2026, the Northern Lighthouse Board signalled plans for a cable management system for shore-to-ship power at its Oban base, supporting the vessel NLV Pole Star. The notice highlights environmental sustainability, operational efficiency and specific site challenges, underlining that even single-berth projects must combine emissions goals with bespoke engineering solutions.
Taken together, these examples show how different buyers are structuring shore power procurements: from Hamburg’s discrete cable-route works, through integrated design-and-build contracts, to early-stage consultations aimed at shaping viable projects.
Delivering shore power requires more than sockets on the quay; it depends on robust electrical infrastructure behind the scenes. In February 2026, Göteborgs Hamn AB issued a contract notice for the OPS Skandiahamnen project, covering design and construction of a transformer station to provide seven OPS connections for container and car transport vessels. The contract includes installing four supplies and preparing for three additional supplies, illustrating how ports are planning capacity for current and future demand in one build.
In June 2026, aktsiaselts Tallinna Sadam moved to strengthen connections at Muuga, tendering a shore power connection project. That scheme combines the construction of connection points and cables for shore substations with preparation of an electrical installation working project and liaison with authorities for approvals and permits. It underlines the regulatory and design workload that sits alongside physical construction.
Similar themes appear in river and harbour contexts. SWT Stadtwerke Trier Versorgungs-GmbH, in August 2026, sought civil engineering and construction work for expanding and converting the power grid along Zurmaiener Street to connect ship landing stages. And in June 2026, Wicklow County Council went to market for an electrical infrastructure upgrade at Arklow Harbour South Quay, including a new high-capacity distribution system, removal of obsolete equipment and enhancements to support future expansions and technologies.
For passenger traffic, climate goals are an explicit driver. In February 2026, Syndicat Mixte Ports de Normandie published a contract notice for electrical connections for ships at Cherbourg’s ferry and cruise terminals, expressly to support climate goals and reduce greenhouse gas emissions. In June 2026, Grand Port Maritime de Marseille followed with a tender for an electrical connection system for cruise ships, supplying and installing equipment at the Major maritime station, building distribution antennas at quay stations and providing mobile connection machines.
Against this backdrop, Hamburg’s cable-route project can be seen as one layer in a multi-stage process: first ensuring sufficient grid capacity and physical conduits, then adding quay-side connection equipment and, finally, integrating ships into these systems.
As more shore power infrastructure comes online, attention is shifting to the electricity itself. In May 2026, the port special fund in Bremerhaven launched a contract notice for the supply of green electricity for five shore power systems. The aim is to procure power for seagoing ships during their port stay so that engines can be turned off while relying on electricity with a defined environmental profile.
There is a similar move in Lübeck. In July 2026, the city’s central administrative services issued a tender for the supply of electrical energy for the shore power facility at Skandinavienkai. Coming after the earlier infrastructure tender, it shows how buyers are sequencing civil works, system installation and long-term energy contracts.
Seen alongside these notices, Hamburg Port Authority’s current tender for cable routes at UNIKAI is one part of a wider transformation of maritime energy use. While other ports procure integrated design-and-build packages or power supply agreements, Hamburg is concentrating on the core construction needed to move electricity along the quay and into position for future connections.
Beyond shipping, similar electricity and cable projects are being framed around decarbonisation. In July 2026, Stadtwerke Steinburg GmbH sought planning services for a 110 kV underground cable route to support increased capacity needs and facilitate the decarbonisation of the cement plant industry. The language around capacity, cables and climate mirrors that now common in port electrification schemes.
The UNIKAI cable-route works are likely to be only one phase in Hamburg Port Authority AöR’s shore power programme. If trends in other ports are a guide, further procurements could follow for quay-side connection equipment, cable management systems, transformer capacity and dedicated electricity supply contracts.
For suppliers, the detail of the Hamburg notice will matter: how the authority defines interfaces with future electrical installations, how it sequences civil works around terminal operations, and how it reflects emissions reduction goals in technical specifications. As more tenders across Europe link cables, grids and cleaner power, the UNIKAI project could become another reference point for how major ports translate climate objectives into practical infrastructure packages.
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